Dispensing closure assembly for containers

ABSTRACT

A removable dispensing closure assembly for an opening in the wall of a container includes an integral plug with a longitudinal passage having an annular flange portion at the outer end adapted to abut against the outer surface of the container wall together with an intermediate portion and an annular lip portion at the inner end sized to insert into the container opening. A flexible tubular member passes through the plug passage and has a normally closed outer end and an open inner end everted over the annular lip portion and back along the periphery of the intermediate portion to form an enlarged flexible end portion having an outer dimension larger than the internal dimension of the container opening whereby the closure assembly can be forcefully inserted into the container opening to effect a fluid-tight seal. Dispensing through the tubular member is effected by selectively opening and closing the passage of the tubular member externally of the container.

United States Patent [191 Wanderer [4 1 Jan. 1, 1974 DISPENSING CLOSUREASSEMBLY FOR [73] Assignee: Denver Plastics, Inc., Lakewood,

[22] Filed: Nov. 15, 1971 [21] Appl. No.: 198,684

[52] U.S. Cl. 222/569 [51] Int. Cl B65d 5/74 [58] Field of Search239/534; 222/490,

222/569, 570, 567, 574, 563; 285/DIG. 22, 162, 200; 220/46 Lohr 185/39 XPudelko 185/43 Primary Examiner-Samuel F. Coleman AssistantExaminer-Norman L. Stack, Jr. Attorney-Ancel W. Lewis, Jr.

[ 57] ABSTRACT A removable dispensing closure assembly for an open ingin the wall of a container includes an integral plug with a longitudinalpassage having an annular flange portion at the outer end adapted toabut against the outer surface of the container wall together with anintermediate portion and an annular lip portion at the inner end sizedto insert into the container opening. A flexible tubular member passesthrough the plug passage and has a normally closed outer end and an openinner end everted over the annular lip portion and back along theperiphery of the intermediate portion to form an enlarged flexible endportion having an outer dimension larger than the internal dimension ofthe container opening whereby the closure assembly can be forcefullyinserted into the container opening to effect a fluid-tight seal.Dispensing through the tubular member is effected by selectively openingand closing the passage of the tubular member externally of thecontainer.

15 Claims, 6 Drawing Figures PATENYEU 3.782.611

INVENTOF? f/ERBERT u. WAI VDERER ATTORNEYS- DISPENSING CLOSURE ASSEMBLYFOR CONTAINERS The present invention relates generally to closures forcontainers and more particularly to a novel and improved removabledispensing closure assembly for bulk milk containers or the like.

In the diary industry, it has been common practice to retain thetransport milk in multi-quart containers adapted to fit in refrigerateddispensing machines used by restaurants, cafeterias or the like. Themulti-quart containers are typically truncated tanks having a drainageopening in the conical side wall near the bottom with a flexibledrainage tube through which the milk is dispensed. A vent opening isgenerally provided in the top wall to prevent a vacuum from building upin the tank and thereby inhibiting the free flow of milk from the tank.

Dispensing closures for the drainage openings in bulk milk containersheretofore generally have encountered difficulties in effecting areliable fluid-tight seal with the container wall surfaces, have beendifficult to remove and replace without damage thereto, and have notbeen entirely satisfactory in retaining the dispensing tube in that thetubes have a tendency to pull away from the container or otherwisebecome separated therefrom.

The dispensing closure assembly of the present invention includes anintegral, generally cylindrical plug, preferably molded plastic, havinga central longitudinal passage for limiting the amount of insertion intothe opening and an annular flanged portion at the outer end togetherwith an intermediate portion and an annular iip portion at the inner endsized to insert into the container opening. An elongated flexibletubular member, preferably of an elastomer material, with a closed endand an open end passes through the passage in the plug and a portion atthe open end is everted or folded back over the inner end and annularlip portion. The total outer dimension of the closure assembly, whichincludes, in addition to the outer dimension of the plug, the wallthickness of the flexible tube, is greater than the diameter of thedrainage opening and sized so that when the closure assembly isforcefully inserted into the container opening a fluid-tight seal iseffected.

The length of the plug and the size and shape of the inner lip portionare such that a pulling force on the outside end of the flexible tubecauses the tubular member to be pinched more tightly in the drainageopening so that inadvertent pulls on the tubular member will not causethe tube to be pulled out through the plug passage. However, due to theelastomeric nature of the flexible tubular member, a continuous pull ofsubstantial magnitude will cause the everted end of the tubular memberto be unfolded so that the tubular member can be pulled through the plugpassage and released without damage to the plug or tubular member whenthe milk container is to be cleaned. A preferred alternative removalmethod, however, is to pry the assembly from the opening by applying aprying force to the outer flange portion.

Accordingly, it is an object of the present invention to provide a noveland improved removable dispensing closure assembly for containers whichis relatively simple and inexpensive to manufacture and provides ahighly effective reliable fluid-tight seal for the con tainer.

It is another object of the present invention to provide a noveldispensing closure assembly suitable for use as a drain spout which maybe easily forcibly inserted or removed from the dispensing opening of acontainer.

Another object of this invention is to provide a novel removabledispensing closure assembly for a container opening which ischaracterized by a hollow plug having an external dimension conformingin shape to that of the container opening and of a size to slide in theopen ing, together with a flexible drainage tubular member which extendsthrough the plug and is everted back over the inner end and the outersurface of the plug so that the tubular member not only provides acontrollable drainage passage through the plug but also provides afluid-tight seal with the surfaces of the container.

Still another object of the present invention is to provide a removabledispensing closure assembly for bulk milk containers and the like whichis characterized by an integral plug having a longitudinal passage, anannular flange portion at the outer end, a rasied annular lip portion atthe inner end and a flexible tube which passes through the passage inthe plug and is everted over the inner end and back along the raisedannular lip portion to form a flexible enlarged end portion adapted toforcibly insert into the container opening and be forcibly removedtherefrom.

Other objects, advantages and capabilities of the present invention willbecome more apparent as the description proceeds taken in conjunctionwith the accompanying drawings, in which:

FIG. 1 is a vertical sectional view taken through a bulk milk containerprovided with the removable dispensing closure assembly of the presentinvention;

FIG. 2 is an enlarged fragmentary sectional view showing the closureassembly drawn approximately to scale located in the fully insertedportion in the drainage opening of the bulk milk container of FIG. 1with a section of the tubular member broken away;

FIG. 3 is an enlarged end view of the closure assembly of the presentinvention as viewed from inside the container of FIG. 1;

FIG. 4 is an enlarged fragmentary sectional view of the closure assemblyonly partially inserted into the container opening;

FIG. 5 is a modified form of plug having an outer raised annular rib;and

FIG. 6 is a modified form of container opening of uniform diameterhaving an inwardly raised annular rib.

Referring first to FIG. 1, a bulk milk container l0is seen to comprise atruncated tank 12 with a removable cover 14 having a downturned annularflange 15 which fits around the top of the tank to effect a seal and hasan opening 16 passing therethrough. The opening 16 is normally closed bya flexible closure 17 and may be of the type which, upon application ofa pulling force to an outwardly projecting pull tab, breaks away a smallsection of the top wall of the closure to vent the container. A suitableflexible closure 17 is fully described in a copending application Ser.No. 198,715 entitled FLEXIBLE CLOSURE WITH FRANGIBLE PULL TAB SECTION.The container 10 is shown as containing a fluid 20 such as milk and isprovided with a drainage opening 18 having the closure assembly 20 ofthe present invention in a fluid-tight sealed relation with thecontainer wall surfaces defining the drainage opening. The bulk milkcontainers 10 are usually made of molded plastic and the normal moldingprocedures have the hole tapered slightly inwardly. The preferred shapeof the drainage opening 18 is circular.

The closure assembly 20, as best seen in FIGS. 2-4 includes an integralplug 22 which is generally cylindrical in shape so that it has acircular transverse cross section conforming in shape to the circulardrainage opening 18. Plug 22 is hollow, has a central longitudinallyextending through passage 24, and includes an annular flange portion 26at the outer end adapted to abut against the outer surface of the sidewall of the tank and an intermediate portion 28 having a uniformexternal diameter through its length and an annular bead or lip portion30 is provided at the inner end of the plug which projects outwardlyfrom the intermediate portion. The flange portion also provides asurface for prying the assembly from the container opening as describedmore fully hereinafter.

The lip portion 30 has a flat beveled surface 32 that tapers outwardlyfrom the intermediate portion toward the inner end of the plug or,conversely, tapers inwardly from the inner end of the plug toward theintermediate portion 26. It will be observed that the inner end of thelip portion 30 is slightly rounded and that the maximum diameter of theraised lip portion 30 is approximately the same or slightly larger thanthat of the drainage opening 18. The plug preferably is made of amoldable plastic material such as polyethylene and preferably is sizedso that it has to compress slightly in the area of the lip portion wheninserted into the container opening without the flexible tubular member34 in place. While an inwardly tapered beveled edge is preferred, it isunderstood that this shape is particularly easy to mold and wedge thetube against the container wall. However, it is understood that thesection of the lip portion may vary, including semicircular shapes andthe like.

The flexible tubular member 34 has an outer dimension or diameter thatis substantially the same as the di-. ameter of the through passage 24and is received in the through passage to the extent that a relativelysmall section 34a of thetubular member extends beyond the inner endthereof. This end section 34a of the tube is everted or folded back overthe inner end of the plug and the raised lip portion 30 and back alongthe inter-; mediate portion 28. The opposite or outer end of thetubularmember is normally pinched closed at 35 by heat sealing or the like sothat no liquid can flow through the internal passage 36 in the tubularmember 34. However, when it is desired to dispense liquid from the tank12, the outer end portion of the tubular member can be cut off and theflow of liquid through the tubular member controlled by pinching thetubular member to close the passage thereof. It is therefore apparentthat the combination tubular member and hollow plug arrangement providesa readily controllabledispensing passage through the tube.

The total external diameter of the closure assembly in the area of theintermediate portion 26 of the plug 22 is approximately the same as thediameter of the intermediate portion of the plug plus twice thethickness of the wall of the flexible tube 34. This total externaldiameter is slightly greater than the minimum diameter of the drainageopening 18 and the maximum external diameter of the assembly above thelip portion 30 is greater yet, so that the closure assembly must beforced into the drainage opening and the portion of the tubular memberbetween the intermediate portion 28 and the container wall is undercompression. The length of the intermediate portion 28 is approximatelythe same as that of the thickness of the wall of the container so thatthe beveled lip portion 30 is located inwardly of the inside surface ofthe container wall in the fully inserted position.

Since the tubular member 34 is made of a flexible material such as anelastomer, it compresses suffiage opening, particularly when any pullingforces are applied to the outer end of the tubular member. The outerflange portion 26 will be seen to dispose and hold the beveled surface32 in this inward position so that the tubular member is alwayscompressed between the plug and the drainage opening wall and compressedthe most in the area of the beveled lip portion represented at 34thereby assuring a leak-proof fluid-tight seal.

A pull tab on the outer end of the flexible tubular member 34 will drawthe plug further to the left as viewed in FIG. 2 thereby causing thebeveled surface 32 to pinch the tube even more tightly against thedrainage opening wall at 34. Therefore, by giving a slight pull on theend of the flexible tubular member a more positive seal can be madeimmediately following insertion of the closure assembly into thedrainage opening.

Due to the flexible characteristics of the tubular member 34, however, acontinuous pull of substantial magnitude on the outside end of the tubewill cause the tubular member to stretch and thereby decrease in itswall thickness. When the tubular wall thickness has decreased a givenamount, the tubular member will slide out of the drainage opening,unfold off the raised bead end of the plug, and will slide out the plugpassage 24. With the tubular member 34 removed the plug will easily comeout and the drainage opening will be unsealed to facilitate cleaning ofthe tank. A preferred manner of removing the closure assembly, however,is to apply a prying tool having a bifurcated end behing the flangeportion 26 and against the outer surface of container wall 12 and prythe assembly out of the opening.

By way of illustration and not by way of limitation, a closure assemblyand container as above described for conventional bulk milk containersmay have the follown ime s s...

The modified form of plug shown in FIG. 6 is similar in construction toplug 22 above described but has a raised annular rib or bead ofapproximately semicircular section 43 at the center of the intermediateportion of the plug to further press the tubular member against thecontainer wall defining the drainage opening 18. An alternativearrangement is shown in FIG. 7 as including a container wall 52 with anon-tapered drainage opening 53 or an opening of uniform diameter isprovided with an inwardly directed annular rib 54 on the inner wallsurface of the container 52. This latter arrangement is more suited forcontainer openings having uniform cross section as shown.

Although the present invention has been described with a certain degreeof particularity, it is understood that the present disclosure has beenmade by way of example and that changes in details of structure may bemade without departing from the spirit thereof.

What is claimed is:

1. A removable dispensing closure assembly for an opening in a wall of acontainer having an inner wall face and an outer wall face at theopening comprising a relatively hard plug with a passage having a flangeportion at the outer end of greater size than the opening and an insertsection sized to insert into the opening and terminating at an innerend, said insert section of said plug includes an intermediate portionhaving a substantially uniform external dimension and a raised lipportion at the inner end, said lip portion being spaced from the flangeportion a sufficient distance along the plug in relation to thethickness of the container wall at the opening to locate the lip portioninwardly of the inner wall face of the container at the opening, and aflexible tubular member having an open end, said tubular memberextending through said passage and projecting beyond the outer end ofthe plug to conduct fluid in the container to a point beyond the outerend of the container opening and plug, said tubular member having asubstantially uniform cross section throughout its lengthwise extent,said tubular member having the open inner end everted over the lipportion of said insert section to provide an enlarged flexible inner endportion having an external dimension larger than the internal dimensionof said container opening whereby a fluid-tight seal is effected byforcing the enlarged flexible inner end portion into the said containeropening and compressing the everted part of the tubular member betweenthe container wall and the plug.

2. A removable closure assembly as set forth in claim 1 wherein saidplug is made as an integral body of a plastic material.

3. A removable closure assembly as set forth in claim 2 wherein saidplug is made of polyethylene.

4. A removable dispensing closure assembly as set forth in claim 1wherein said plug is circular in transverse cross section.

5. A removable dispensing closure assembly as set forth in claim 1wherein said tubular member is normally closed at the outer end.

6. A removable dispensing closure assembly as set forth in claim 1wherein said lip portion has a flattened peripheral surface which tapersinwardly from the inner end of the plug toward the intermediate portion.

7. A removable dispensing closure assembly as set forth in claim 1wherein said flanged outer end of said plug has a diameter which is atleast one and one-half times the diameter of the intermediate portion.

8. A removable dispensing closure assembly as set forth in claim 1wherein the length of said intermediate portion is approximately thesame as the thickness of the container wall at the opening to locate thelip portion inwardly of the inner face of the container.

9. A removable dispensing closure assembly as set forth in claim 1wherein the maximum dimension of said lip portion is approximately thesame as the minimum diameter of the opening in the container.

10. A removable dispensing closure assembly as set forth in claim 1wherein said plug has an annular rib between said flange portion and lipportion to further press the everted portion of the tubular memberagainst the container wall.

11. A removable dispensing closure assembly for an opening in a wall ofa container having an inner wall face and an outer wall face at theopening comprising a relatively hard, integral plug with a centralthrough passage, said plug having an annular flange portion at the outerend of a greater size than the opening together with an insert sectionsized to insert into the opening and terminating at an inner endincluding an intermediate portion and an annular lip portion, said lipportion being spaced from the flange portion a sufficient distance alongthe plug in relation to the thickness of the container wall at theopening to locate the lip portion inwardly to the inner wall face of thecontainer at the opening, and a flexible tubular member having an openinner end, said tubular member having a substantially uniform crosssection throughout its lengthwise extent, said tubular member extendingthrough said passage and projecting beyond the outer end of the plug toconduct fluid in the container to a point beyond the outer end of thecontainer opening and plug, said tubular member extending around. theinner end of the plug and being everted back over said lip portion toprovide an enlarged flexible inner end portion having an externaldiameter larger than the smallest internal diameter of the containeropening whereby a fluid-tight seal is efiected by forcing the enlargedflexible inner end portion into said container opening and compressingthe everted part of the tubular member between the container wall andthe plug and the lip portion further compresses the tubular memberagainst the inner wall face of the container upon the applicator of apulling force to the outer end of the tubular member.

12. A removable dispensing closure assembly for an opening in a wall ofa container having an inner wall face and an outer wall face at theopening comprising:

a generally cylindrical, relatively hard, molded plastic plug with acentral longitudinal passage including an outer flange portion of agreater diameter than the container opening and abutting against anouter wall of the container and including an insert section sized toinsert into the opening and terminating at an inner end which includesan intermediate portion of uniform external diameter, and a lip portionprojecting outwardly from the intermediate portion at the inner end ofthe plug, said lip portion being spaced from the flange portion asufficient distance along the plug in relation to the thickness of thecontainer wall at the opening to locate the lip portion inwardly of theinner wall face of the container at the opening, said lip portion havinga beveled surface converging inwardly toward the intermediate portionand having the maximum external diameter portion substantiallyy the sameas the minimum internal diameter of the container opening,

a flexible tubular member made of an elastomeric material having aclosed outer end and an open inner end, said open inner end tubularmember extending through said passage and projecting beyond the outerend of the plug to conduct fluid in the container to a point beyond theouter end of the container opening and plug, said tubular member havinga substantially uniform cross-section throughout its lengthwise extent,said tubular member having an inner end portion everted back over saidlip portion to provide an enlarged flexible inner end portion having anexternal diameter slightly greater than the smallest internal diameterof the closure opening whereby a section of the tube is compressedagainst the container wall along the opening and the inner wall face bysaid plug to effect a fluid-tight seal by forcing the enlarged flexibleend portion into said container opening and the beveled face of the lipportion further compresses the tubular section against the inner wallface of the container upon the application of a pulling force to theouter end of the tubular member.

13. In a container apparatus, the combination comprising a containerhaving a dispensing opening through which a fluid can be dispensed andhaving an inner wall face and an outer wall face at the opening, adispensing closure assembly for the dispensing opening comprising arelatively hard integral plug with a longitudinal passage, said plughaving a flange portion of greater external dimension than thedispensing opening, and an insert section sized to insert into theopening and terminating at an inner end including an intermediateportion, and an annular lip portion being spaced from the flange portiona sufficient distance along the plug in relation to the thickness of thecontainer wall at the opening to locate the lip portion inwardly beyondthe inner wall face of the container opening, said lip portion being inthe form of a raised bead having a beveled face tapering inwardly fromthe inner end of the plug toward the intermediate portion, and aflexible tubular member having one end closed and the other end open,said tubular member having a substantially uniform cross sectionthroughout its lengthwise extent, said tubular member passing throughthe plug passage and projecting beyond the outer end of the plug toconduct fluid in the container to a point beyond the outer end of thecontainer opening and plug, said tubular member being everted back overthe raised bead and back a substantial distance along the intermediateportion of the plug to provide an enlarged end portion having a greaterexternal dimension than the internal dimension of the dispensing openingso that the intermediate and lip portion compress the tubular memberagainst the container wall along the opening and inner wall face toeffect a fluidtight seal.

14. In a container apparatus as set forth in claim 13 wherein saidcontainer opening is inwardly convergent.

15. In container apparatus as set forth in claim 13 wherein saidcontainer opening has a uniform diameter and an inwardly extendingannular rib to effect a tighter seal with the everted portion of thetubular member.

1. A removable dispensing closure assembly for an opening in a wall of acontainer having an inner wall face and an outer wall face at theopening comprising a relatively hard plug with a passage having a flangeportion at the outer end of greater size than the opening and an insertsection sized to insert into the opening and terminating at an innerend, said insert section of said plug includes an intermediate portionhaving a substantially uniform external dimension and a raised lipportion at the inner end, said lip portion being spaced from the flangeportion a sufficient distance along the plug in relation to thethickness of the container wall at the opening to locate the lip portioninwardly of the inner wall face of the container at the opening, and aflexible tubular member having an open end, said tubular memberextending through said passage and projecting beyond the outer end ofthe plug to conduct fluid in the container to a point beyond the outerend of the container opening and plug, said tubular member having asubstantially uniform cross section throughout its lengthwise extent,said tubular member having the open inner end everted over the lipportion of said insert section to provide an enlarged flexible inner endportion having an external dimension larger than the internal dimensionof said container opening whereby a fluid-tight seal is effected byforcing the enlarged flexible inner end portion into the said containeropening and compressing the everted part of the tubular member betweenthe container wall and the plug.
 2. A removable closure assembly as setforth in claim 1 wherein said plug is made as an integral body of aplastic material.
 3. A removable closure assembly as set forth in claim2 wherein said plug is made of polyethylene.
 4. A removable dispensingclosure assembly as set forth in claim 1 wherein said plug is circularin transverse cross section.
 5. A removable dispensing closure assemblyas set forth in claim 1 wherein said tubular member is normally closedat the outer end.
 6. A removable dispensing closure assembly as setforth in claim 1 wherein said lip portion has a flattened peripheralsurface which tapers inwardly from the inner end of the plug toward theintermediate portion.
 7. A removable dispensing closure assembly as setforth in claim 1 wherein said flanged outer end of said plug has adiameter which is at least one and one-half times the diameter of theintermediate portion.
 8. A removable dispensing closure assembly as setforth in claim 1 wherein the length of said intermediate portion isapproximately the same as the thickness of the container wall at theopening to locate the lip portion inwardly of the inner face of thecontainer.
 9. A removable dispensing closure assembly as set forth inclaim 1 wherein the maximum dimension of said lip portion isapproximately the same as the minimum diameter of the opening in thecontainer.
 10. A removable dispensing closure assembly as set forth inclaim 1 wherein said plug has an annular rib between said flange portionand lip portion to further press the everted portion of the tubularmember against the container wall.
 11. A removable dispensing closureassembly for an opening in a wall of a container having an inner wallface and an outer wall face at the opening comprising a relatively hard,integral plug with a central through passage, said plug having anannular flange portion at the outer end of a greater size than theopening together with an insert section sized to insert into the openingand terminating at an inner end including an intermediate portion and anannular lip portion, said lip portion being spaced from the flangeportion a sufficient distance along the plug in relation to thethickness of the container wall at the opening to locate the lip portioninwardly to the inner wall face of the container at the opening, and aflexible tubular member having an open inner end, said tubular memberhaving a substantially uniform cross section throughout its lengthwiseextent, said tubular member extending through said passage andprojecting beyond the outer end of the plug to conduct fluid in thecontainer to a point beyond the outer end of the container opening andplug, said tubular member extending around the inner end of the plug andbeing everted back over said lip portion to provide an enlarged flexibleinner end portion having an external diameter larger than the smallestinternal diameter of the container opening whereby a fluid-tight seal iseffected by forcing the enlarged flexible inner end portion into saidcontainer opening and compressing the everted part of the tubular memberbetween the container wall and the plug and the lip portion furthercompresses the tubular member against the inner wall face of thecontainer upon the applicator of a pulling force to the outer end of thetubular member.
 12. A removable dispensing closure assembly for anopening in a wall of a container having an inner wall face and an outerwall face at the opening comprising: a generally cylindrical, relativelyhard, molded plastic plug with a central longitudinal passage includingan outer flange portion of a greater diameter than the container openingand abutting against an outer wall of the container and including aninsert section sized to insert into the opening and terminating at aninner end which includes an intermediate portion of uniform externaldiameter, and a lip portion projecting outwardly from the intermediateportion at the inner end of the plug, said lip portion being spaced fromthe flange portion a sufficient distance along the plug in relation tothe thickness of the container wall at the opening to locate the lipportion inwardly of the inner wall face of the container at the opening,said lip portion having a beveled surface converging inwardly toward theintermediate portion and having the maximum external diameter portionsubstantially the same as the minimum internal diameter of the containeropening, a flexible tubular member made of an elastomeric materialhaving a closed outer end and an open inner end, said open inner endtubular member extending through said passage and projecting beyond theouter end of the plug to conduct fluid in the container to a pointbeyond the outer end of the container opening and plug, said tubularmember having a substantially uniform cross-section throughout itslengthwise extent, said tubular member having an inner end portioneverted back over said lip portion to provide an enlarged flexible innerend portion having an external diameter slightly greater than thesmallest internal diameter of the closure opening whereby a section ofthe tube is compressed against the container wall along the opening andthe inner wall face by said plug to effect a fluid-tight seal by forcingthe enlarged flexible end portion into said container opening and thebeveled face of the lip portion further compresses the tubular sectionagainst the inner wall face of the container upon the application of apulling force to the outer end of the tubular member.
 13. In a containerapparatus, the combination comprising a container having a dispensingopening through which a fluid can be dispensed and having an inner wallface and an outer wall face at the opening, a dispensing closureassembly for the dispensing opening comprising a relatively hardintegral plug with a longitudinal passage, said plug having a flangeportion of greater external dimension than the dispensing opening, andan insert section sized to insert into the opening and terminating at aninner end including an intermediate portion, and an annular lip portionbeing spaced from the flange portion a sufficient distance along theplug in relation to the thickness of the container wall at the openingto locate the lip portion inwardly beyond the inner wall face of thecontainer opening, said lip portion being in the form of a raised beadhaving a beveled face tapering inwardly from the inner end of the plugtoward the intermediate portion, and a flexible tubular member havingone end closed and the other end open, said tubular member having asubstantially uniform cross section throughout its lengthwise extent,said tubular member passing through the plug passage and projectingbeyond the outer end of the plug to conduct fluid in the container to apoint beyond the outer end of the container opening and plug, saidtubular member being everted back over the raised bead and back asubstantial distance along the intermediate portion of the plug toprovide an enlarged end portion having a greater external dimension thanthe internal dimension of the dispensing opening so that theintermediate and lip portion compress the tubular member against thecontainer wall along the opening and inner wall face to effect afluid-tight seal.
 14. In container apparatus as set forth in claim 13wherein said container opening is inwardly convergent.
 15. In containerapparatus as set forth in claim 13 wherein said container opening has auniform diameter and an inwardly extending annular rib to effect atighter seal with the everted portion of the tubular member.